Artificial-stone slab, plate, and the like.



F. M. E. VON MOLLENBRUCK. ARTIHCEAL STGNE SLAB, PHTi, AND THE LIKE.

APPLICAUON FILED MIG-22. 1907.

Patented y 18, 1915.

WITNESSES 4 -To all whom it may aohce'rn; Beit known that-I,

VON MoLL'nNaRUon,

- or the like of cement and terial frequently: injuriously 'ing a colored cement relatively thin a pFnANz MUSIL EDLER of Austria-Hungary, 'residingat Linz-onthe-Danube, in' the-wEmpire of Austria- Hungary, have invented new and useful Improvements in Artificial-Stone Slabs, Plates, and the like; and I dohereby declare that .the following isa full, clear,and exact 'de-.

scription of theinvention, which will enable others skilled irrthe art to which it appertains to make and use the same.

This invention relates to the manufacture of slabs, plates and the like of artificial stone provided with a colored coating or layer. Such slabs, plates or the like of cement and sand or cement and fibrous substances are usually colored throughout the whole mass. They cannot, however, be coml'nercially manufactured in this way since the coloring ma terials are relatively expensive and the per-' meation of the slabsor plates throughout their whole thickness by the coloring maaffectstheir strength. By printing, applying or cementfound notto be possible to permanently set. cure the coating,

of the said-icoatmgiwith the mass was;

7 efiectedwhilelthe lattefwas not completely; hardened,fthe reason being that-the difierji ence in, the. condition "of tension between the 'd brittle colored-layer and the box or body of the slab'or plateand the climatic changes; to" which-such [plates 'he s i a w 11dqi y sm colored layer to cracli'or peel ofi-f;

' Now, this inventionhas- 'for. its' object to:

obviate the-above. described; disadvantages stone lates, labsfibrousmaterials ,I have-illustrated it in the acfcomp'anyin'g dra' and to this end artificial are provided withgafcolorcoating orilay'e'r I plied in avery th n state, as by reason-o present in} the material. thereis no -liabilitly ofportions of'the-coatinglcrackin 4 ingrofi. Byatta'ching the. body 0 not com letely set the segarationjof the whole co ored plate fromjt egr'ound layer asubject of the Emperor in every sense, v

layer of hydraulic binding materials, jfibers, 60

j coating in 0rd layer or coating upon the surface of the plate" or the like it was:

even when the connection-'- f-j'afiectedbyfire and may be the materially afiect the-general "the-same, their main function s bs a es and fibrous: matenals Such a colored layer 1 esp is characterized. layhigh j elasticity and resi'stance and can be a 7 'M n' body jcement and fibrous-materials. and

color coating or la -di'au1ic binding so the fibers-which are or pee theslah;

' or the like and thecoati n'% in a'know'n P I at .a period at which th ate and layer are:

am'mmasaoaasrm,1 mm, an Inn -11.1mm

7 prevented and so a colored artificial stone ornron niac n; or-fnmz 'onl-rnn-nanunn, 'nus'rnrn- .plate or the like is obtained which is durable The coating or p substances 1' and coloring matter can bemanufactured inany convenient-way.

The body or base plate can also be colored with a cheaper coloring substance than'the er to present the same apearance as the latter. Furthermore, the ody, .base plateor the like can have substituted for the cement-apulverulent'body,

such for example, as] carbonate of lime, 1n order that the said base plate. and the coating shall have, as far as co-efiicients ofexpansion. s 1

It will be obvious that-the mass of'the. coating can have added to it filling ma terials, chemical admixtures or-osubstancesfor increasing or hardening properties or substances for 1 npossible, the same creasing the watertight and elastic. roperties of the plate without in any way a ecting the;

' essential feature of the-invention. The coat-- Ling can also have incorporated with it glitz-- ing materials and the hydraulic binding terial may be partiallyreplacedsby bindingmaterials, .such as gypsur'm obvious --that these-binding other It. 'is

fire resisting'building -ma a block made with either "of materials will not beiseriously classed among 7 terials. Itwiu:

also beseen that the'fibrous materials will be I thoroughly coated and iingregn tedwiththe- I other materials forming t 111,; surface of the block and g in'the' coherence oi-the colored surime-er the main body of the block.

In order that my invention may be clearly which shows. a peror, late.

' ferring of the slab which is composed .of

er which consists of hyand'coloring matter, the; said body a and color coating b and asabove set-forth."- 4 now particularly and Y9 w y proved artificial s1 ab .90 e base and colored that they will not i roperties of eing thatof 9'5 ion to the drawing, a represents'th bthe thin stances, fibrous material decreasing the binding or. 4-

- body extending into and being set in the binding material of the outer colored layer,

and the fibrous material of the outer colored layer extending into and being; set in the binding material of the main body.

2. An artificial stone slab o r plate consisting of a mainbody and an'outer colored intense layer united. therewith, the main body being composed of a fibrous material. and a hydrau'lic binding material, the said outer la er being composed of fibrous material binding material and colorin matter, the binding material of the main ody and of the outer colored layer having substantially the same coeficiency of expansion and contraction,

the fibrous material of the main body extending into and being set in the binding material of the outer colored layer and the fibrous material ofthe outer colored layer extending into and being set in the binding material of the main body'., FRANZ MUSILEDLER V01! MOLLENBRUOK;

Witnesses: a

Dr. Anon GALL'IA, Roar. W. HEINARTNER. 

